Android get Facebook friends who have app downloaded

Question

I am using the Facebook Android SDK. Is there an easy way to get a user's friends who have downloaded the app? For example, the app Draw Something implements this. I can't seem to find any information on this subject

I would guess that if it was possible, some extra information would be needed in the httppost to access this information.

Answer 1

* Note: since 3.14 version, me/friends will only return friends that also use the app, so below implementation is deprecated. See the new "Invitable Friends" or "Taggable Friends" APIs for alternatives.

Using the new Facebook SDK for Android (3.0) is very easy to get your user's friend list. Following is the code:

private void requestFacebookFriends(Session session) {
    Request.executeMyFriendsRequestAsync(session,
            new Request.GraphUserListCallback() {
                @Override
                public void onCompleted(List<GraphUser> users,
                        Response response) {
                    // TODO: your code for friends here!
                }
            });
}

Nevertheless, in order to get the user's friends who are using your Facebook app is a little bit complicated (due to Facebook API documentation). But yes, it is possible.

First of all, create your request:

private Request createRequest(Session session) {
    Request request = Request.newGraphPathRequest(session, "me/friends", null);

    Set<String> fields = new HashSet<String>();
    String[] requiredFields = new String[] { "id", "name", "picture",
            "installed" };
    fields.addAll(Arrays.asList(requiredFields));

    Bundle parameters = request.getParameters();
    parameters.putString("fields", TextUtils.join(",", fields));
    request.setParameters(parameters);

    return request;
}

Note that you need to insert the field "installed" in your request. I'm requesting the user picture path with the same request. Check your possibilities here.

Next, you can use above code to create your request and then get your friends:

private void requestMyAppFacebookFriends(Session session) {
    Request friendsRequest = createRequest(session);
    friendsRequest.setCallback(new Request.Callback() {

        @Override
        public void onCompleted(Response response) {
            List<GraphUser> friends = getResults(response);
            // TODO: your code here
        }
    });
    friendsRequest.executeAsync();
}

Note that using this generic request, you don't receive a GraphUser list as response. You'll need following code to get the response as GraphUser list:

private List<GraphUser> getResults(Response response) {
    GraphMultiResult multiResult = response
            .getGraphObjectAs(GraphMultiResult.class);
    GraphObjectList<GraphObject> data = multiResult.getData();
    return data.castToListOf(GraphUser.class);
}

Now you can use your user's friend list, with the information if each of your friends use your Facebook app:

GraphUser user = friends.get(0);
boolean installed = false;
if(user.getProperty("installed") != null)
    installed = (Boolean) user.getProperty("installed");

Answer 2

I implemented it in this way

Bundle params = new Bundle();

params.putString("fields", "name, picture, location, installed");

And during displaying of the items on the list,in the getView() method i did this

boolean b = jsonObject.getBoolean("installed");

if (b){
    Log.d("VIVEK",jsonObject.getString("name"));
}